why is my system saying "server error" when i try to charge a card?
According to issquare up, Square seems to be having issues see image below, and under the image there is a Link to issquareup.com
https://www.issquareup.com/united-states
Same here, all locations are experiencing the same for us
Same here in Australia; two locations Square PoS says "network error - no internet connection" when trying to take card payment.
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